What’s Vulnerable › Vulnerabilities

CVE-2026-43643: Softaculous Virtualizor Authorization Bypass via Billing Module Handler

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-22 · updated 2026-09-22
• Weakness: CWE-862

Description

Softaculous Virtualizor before 3.2.9 (Patch 9) and 3.0.0 contains an authorization bypass vulnerability in the billing module handler that allows unauthenticated remote attackers to modify any tenant's account balance by supplying crafted act and from_billing_module parameters to the admin panel dispatcher. Attackers can send a POST request with arbitrary uid and balance values in the billing_data field to trigger an unauthenticated parameterized UPDATE against the users table, enabling account balance manipulation and potential automated service suspension for targeted accounts.

Affected products

• Softaculous Virtualizor: before 3.2.9 (Patch 9) — fixed in 3.2.9 (Patch 9)

How to fix

Upgrade to a fixed version: Softaculous Virtualizor 3.2.9 (Patch 9). Check the vendor advisory for mitigations.

References

• https://www.virtualizor.com/blog/virtualizor-3-2-9-launched-release-candidate-patch-9/
• https://www.virtualizor.com/blog/virtualizor-3-3-0/
• https://www.vulncheck.com/advisories/softaculous-virtualizor-authorization-bypass-via-billing-module-handler
• https://www.vulncheck.com/blog/virtualizor-billing-hook-unauthenticated-root-rce

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